There is a high dive show in the old aquatic stadium, where the dolphins used to be (years ago). I haven't had much opportunity to see the show myself, but I've heard mixed reviews, more on the good side of not-so-bad. As for where new rides will go and if they will utilize this area for another purpose, that's for CP to know and us to find out!
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Po!nt of View: A different look at Roller Coasters.
http://www.crosswinds.net/~justmayntz/thrills/index.html